D-And F-Block Elements Ques 265
Question: In a reaction the ferrous $ (F{{e}^{++}}) $ iron is oxidised to ferric $ (F{{e}^{+++}}) $ ion. The equivalent weight of the ion in the above reaction is equal to
[CPMT 1985]
Options:
A) Half of the atomic weight
B) 1/5 of the atomic weight
C) The atomic weight
D) Twice the atomic weight
Show Answer
Answer:
Correct Answer: C
Solution:
The atomic weight; $ \text{Equivalent weight }=\frac{\text{Atomic weight}}{\text{ No}\text{.of }{{e}^{}}\text{lost or gained}} $
$ F{{e}^{2+}},\to ,F{{e}^{3+}}+{{e}^{-}} $ \ Equivalent weight = Atomic weight
